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I'm just having a little fun to, but please don't leave without answering. Don't tell me I'm wrong if you can't tell me what is right.If I didn't know any better I would say you are looking for an easy way out. If you don't post in ten minutes with your version then I win and I will drop it.

And another one down and another one down and another one bites the dust.

Heres another little clue that may help you on your search for the truth about cap-tubes, which travels faster vapor or liquid ? if one of these travels faster do you think that there would be a potential for that cap-tube to modulate if the balance of liquid and vapor were to change ?

Hmmm sounds extremely inefficient to start the process of absorbing heat in a place where it does no good. Isnt that the process of cooling? Absorb heat by the changing of state IN the evaportator? Why would we change state prior to entering the evap? Changing the state of gas has very little effect since it requires very little heat to raise the temperature.

Its not a place to change state its called the bubble length. For documentation just open up any RSES SAMS manual or consult the manufacturer of the thing, and you will find the correct definition of a cap-tube, Vapor and liquid travel through the tube in varying proportions according to the load on the evaporator that is why the length of a cap-tube is so critical it is not the same metering device if you have the wrong length or size. This is simple stuff simply overlooked.There is no other definitin and no comparison to an orifice or a piston now I'm going to assume that everyone knows the difference between an orifice and a piston.

Oh yeah vapor travels slower restricts fluid,less liquid less cooling effect, less load on compressor, more liquid sent to cap-tube, travels faster, more lquid to evaporator,picks up more heat,more load on compressor less liquid to cap tube, on and on. I think that is pretty much the definition of modulating control however, inefficeint compared to TXV.